下列各种折旧方法中,属加速折旧的方法有( )。
A. 年数总和法
B. MACRS
C. 年金法
D. 双倍余额递减法
I made a promise to myself __________ this year, my first year in high school, would be different.
A. whether
B. what
C. that
D. how
Evidence has been found through years of study _______ children's early sleeping problems are likely to continue when they grow up.
A. why
B. how
C. whether
D. that
I have no impression _________ he went home, perhaps by bike.
A. how
B. that
C. where
D. which